12g202 cylinder head

12g202 cylinder head. Part of my retirement clearout. Find many great new & used options and get the best deals for Classic MINI Cooper 998 Cylinder Head 12G206 at the best online prices at eBay! Free shipping for many products! Classic mini 12G202 1098 cc cylinder head. The 12G202 was an early 997 Cooper head and the 997 had higher compression pistons than the later prodution 998 engines. Sign in to check out. img. Rare head now. Excluding Sales Tax. Fits 998cc a series or a plus. Oct 16, 2016 · The 1098cc Minor cylinder head 12G202 has a combustion chamber of 26. Pre-owned | Business. Their port/throat castings are way too different, with the 295 way too big in the ports, and the best baseline will be a CAM4810, a late A plus small bore head with small ports to be shaped right for the application. Along came OHV engines and pressurised cooling systems, so the procedure became more complex and far less re-use of head gaskets. $16. Are the valve sizes different. Spec: 33mm intake, 28mm exhaust, combustion chamber volumn 23cc. Got a Question? Description. Classic Mini Cooper - 12G202 Cylinder Head. The Head requires complete reconditioning including skimming (as the surface is pitted) - see photos. Pre-Owned: BMC. + Postage. MG Car Cylinder Heads, . For identification purposes the casting number is 12G202 and the inlet valves are 1 5/32" (29. 3cc against 26. Time left: 6d 19h | Starting bid: £100. 'A' Plus engines are usually fitted with 3 collet groves in the valve stem. The 998cc Cooper cylinder head was also fitted to high performance 1098cc engines, including the MG, Wolseley, Riley Kestrel and Vanden Plas Princess 1100 models, plus 1098cc Austin Healey Sprites and MG Midgets. Sep 24, 2021 · Last time we started building a small-bore engine for maximum power. Listed 42 weeks ago in Sydney MINI COOPER 12G202 CYLINDER HEAD 998 1098cc MG MIDGET/MORRIS MINOR CLASSIC CAR. Cylinder Heads. If the exhaust valve seats have been replaced with inserts the cylinder head in all probability has been converted to use unleaded fuel. Normally fitted to 998cc Mini 'A' Plus engines and is coloured yellow. 03 postage estimate. 00 core charge. You cant do the same work on CAM4810, 12g202, 12g295 head. 800-942-4503. Trending at $18. Ive got a set of Twin HS2 carbs in need of a refurb to P/X. 5 mm so it has been machined. It has stainless steel valves and bronze guides. 1-Both a 12G295 & a 12G940 are useful improvements over a standard 12G202 1098 head, the 940 being slightly the better. It has been overhauled with new valves and guides. There is also a very rare small-bore head that was fitted to the last (January 1964) 997 Cooper which also has cast number 12A185. Feb 23, 2009 · 12g295 Vs 12g202 - posted in Forced Induction: Whats the difference other than the chamber size (28cc for the 295 i think and 26cc for the 202? forgive me if im wrong). 23. 90. It consists of a combustion chamber, spark plugs, and sometimes valves (in the I and F-heads). if im correct the valves are a bit bigger. Posted 02 July 2015 - 10:05 AM. $979. Something went wrong. Basically it's not that special. They are all in need of checking over and refurb so prices to match. We are a UK based Morris Minor Spare parts supplier. Add to Cart. Vales, springs and colets all together and not removed Will probably need a skim like most second hand heads item 1 classic mini 12g202 cylinder head mg midget-minor rally 997 998cc cooper morris classic mini 12g202 cylinder head mg midget-minor rally 997 998cc cooper morris £60. CAM4810 - £40 Any questions drop me a PM. Mini Cooper 997 Morris Minor 1100 BMC A Series 12G202 Cylinder Head Classic Car. The 12G202 cylinder head will fit straight on - whilst you are changing the head make sure that the oil feed gallery to the rocker shaft through No:1 rocker shaft pillar is drilled and clear especially if the later rocker shaft is fitted with the shaft locking peg in No:2 This was overhauled years ago and never used. Price From £425. Find many great new & used options and get the best deals for Classic Mini 12G202 Cylinder Head at the best online prices at eBay! The other obvious distinguishing feature of this cylinder head is the inlet valve. 84. Heads less a by pass hose tube are probably Allegro 1973 on. 4 Diesel 250-4203 GLOBAL. So if you just fit it the ompression ratio will be very low. MINI COOPER 12G202 CYLINDER HEAD 997 998 1098 MG MIDGET MORRIS MINOR RACE RALLY | eBay These are better small valve heads than standard 848/998 Mini heads. Edited by RayBoogs, 22 January 2015 - 11:11 PM. Find many great new & used options and get the best deals for Mini 998cc Cooper 12G295 Cylinder Head at the best online prices at eBay! Free shipping for many products! Nov 26, 2005 · Head question, Can any one identify this cylinder head please, 12G202 I came across it in a shed, with a full set of valves, and double valve springs, its been ported and polished, will it fit on a 1000cc engine, one broken stud in T/stat housing, Thanks Fitzy. Hobbies › Car Engines & Parts. 12G202 cylinder heads available Take your pick More photos available of each head, just screenshot the one you are interested in and I will send you more photos Postage $35 Australia wide ( 12G202 cylinder heads available - Auto Parts - Sydney, Australia | Facebook Marketplace MORRIS MINOR 12G202 CYLINDER HEAD 1098cc MG MIDGET/MINI. Find many great new & used options and get the best deals for Leyland Morris Mini Cylinder Head 12G202 at the best online prices at eBay! The 997cc Cooper cylinder head was also fitted to various standard tune 1098cc engines, including the single carburetter Austin/Morris 1100 and the 1098cc Minis, plus the high performance 948cc Austin Healey Sprite Mk II and MG Midget Mk I. Blue - 12G202 - £40 ono Red - 1275 std - £35 onoYellow - CAM 4810 (998cc) - £40All prices are negotiable, and i live in portsmouth area and oxford so can deliver up the A34. £75. Search terms: cylinder head. 00 Free postage Find many great new & used options and get the best deals for MINI COOPER 12G202 CYLINDER HEAD 998 1098cc MG MIDGET/MORRIS MINOR RACE RALLY at the best online prices at eBay! Free delivery for many products. or Best Offer. Check out as guest. One is a 12G202 stamped head the other is a CAM4810 stamped 12G202 - £100. 12G295 Cylinder head. 3 - Test with 3-angle seats cut into head and standard valves. 12G295 cylinder head. Classic Mini 12g202 cylinder head as off engine. 00 Buy It Now , £12. The cylinder head is bolted to the upper part of the cylinder block. EUR 17. Nov 26, 2002 · The thing that got me started is when i went to buy a supposedly sqaure port header for my Z. Cheers Apr 18, 2024 · Mini Cooper 997 Morris Minor 1100 BMC A Series 12G202 Cylinder Head Classic Car. Will need an overhaul, etc. diameter, which at just 1 1/16" (27mm) is the smallest of any A Series head design. A$175 A$300. Used old stock Mini cooper 998cc / 1000cc cylinderhead 12G295. the_mini_man (10,942) 100%. 1cc. Aug 11, 2009 · Posted 11 August 2009 - 09:23 PM. BMC Car Cylinder Heads with Classic Part, Dec 26, 2019 · The stages would be -. It will need a refurb & paint before useing it. 12G202 and used in Mini Cooper 997s. musictoyourears (6687) 100% positive; Cylinder Head & Valve Cover Gaskets for Morris Minor, Mar 29, 2024 · Find many great new & used options and get the best deals for Mini Cooper 997 Morris Minor 1100 BMC A Series 12G202 Cylinder Head Classic Car at the best online prices at eBay! Free shipping for many products! A genuine Classic Mini Cooper Mk1 12G202 cylinder head sold for rebuild/reconditioning. Jan 15, 2015 · 2 old cylinder heads I have lying around. They are a bit smaller than the 12G295 or 12G206 heads, which gives you a bit more metal to play with when grinding. It is not unleaded,that's how long i've had it. The head thickness measuring just over 68. Mini engines are known to have restrictive cylinder heads, thus limiting their capability to fill up the cylinders which in turn limits their power output. This joint is covered by a head gasket. In need of total overhaul as not used for years. Have a read of these too. Head gaskets were often re-used a couple - or even several - times on side valve engines. See Current Products. This is especially true with the standard 850cc (2A629) and 998cc (12A1456) small bore heads that have small ports and valves. from United Kingdom. thanks Sep 18, 2006 · Page 1 of 2 - Finished fitting a 12G202 on a 998 engine. Is the 202 any good for a 998? Apr 5, 2018 · The 12G202 cylinder head is the standard cylinder head for the 1098cc Morris 1000 engine and was made for use with leaded fuel. Leyland Austin Morris (1978-1989) O Series 17v Timing Pointer. 850-1098. May 23, 2011 · Cylinder Heads - posted in Problems, Questions and Technical: Hi, will a CAM 4810 cylinder head (which i think is a A+ 998??) fit an 1979 A series 1100 engine without any probs, or is it better having the 12g202's exhaust valve seats sorted for unleaded? Mini Cooper 997 Morris Minor 1100 BMC A Series 12G202 Cylinder Head Classic Car. It was in fact a round port, but had obviously been used on an earlier model head because the carbon on the header was sqaure. Mar 14, 2008 · So, to sum up, as I understand it:-. MCCS Engineering are extremely 12g202 mini cylinder head for refurbishing Pick up north Narrabeen. - posted in Wanted: Im looking for a modified 12g202 unleaded head for my 998 mini. 3″ in… China Cylinder Head 12g202 Manufacturers, Supply Cylinder Head 12g202 with High Quality, Wholesale Cylinder Head 12g202 with Low Price, High Quality. 1 - Test with 30-deg back-cut on standard valves and reduced seat width on standard seats in the head. Part No: 12G202REBUILT. Jan 31, 2015 · A 202 head has larger chambers then a 998 head, so you'll need to get the head skimmed a bit to bring up the C/R to at least as high as you have now. hetty What can I do for you? The difference between a 2A629 948 cylinder head and a 12G202 1098 cylinder head is a larger combustion chamber and larger inlet valves. Starts, but no power to move! - posted in Problems, Questions and Technical: I recently had a big issue with the stock 998cc engine in my 85 mayfair. Customs services and international tracking provided. BMC Car Cylinder Heads with Classic Part, May 28, 2014 · used on the 948 here in the states was the 12G202. & its tuned i to a right little Beauty 🥰🥰🥰 This will work real-well now. 0:1 is a nice ratio for a fast road 12G295 Cylinder head. 2-A 295 is a drop on replacement for a 202, rockers etc can be re-used, and a standard head gasket can be used. 2 - Test with race-profile, waisted valve stem valves on standard seats for comparison. Classic Mini MOWOG 12G202 Cylinder Head. 00 [ 0 bids] [ 0 bids] Submit bid. In theory, these heads can be replaced with off-the-shelf heads Cylinder head - Identification by casting number. I'm going to use the 12G202 head, as these are the best to modify for our purposes. All Longman heads are fully ported and polished and come assembled with Longman's exclusive valves, guides, springs and retainers. 00 Shipping , 14-Day Returns, eBay Money Back Guarantee A quick calculation method is single cylinder volume / compression ratio - 1 = chamber volume. Classic Mini Cylinder Head 12G202 Came in a job lot looks to be fairly good needs a good service skim etc before use Bare head nothing else included ready for refurb Viewing welcome and cash on collection preferred once your happy with it OK, it’s time to get the motor back on the dyno with a few new bits and see how it stacks up. no. Both in good condition just old and grimey, would be fine with a good clean up. Our car parts are sourced all over the world. Main Index. Check the item description to confirm this fits your vehicle. 1098cc Lead Free Cylinder Head 12G202. 95. The head is not unleaded and has Mini Cooper 997 Morris Minor 1100 BMC A Series 12G202 Cylinder Head Classic Car. An example of where the same casting/part number applies to two different parts application. 99. The 998 head can work even better because there is more material present to get the best internal ARP HEAD BOLT SET CHEV SB 23° WITH FACTORY HEADS HEX 134-3601. £8. As you mention 12G295 this is probably a 998 engine? if so 10. Oct 5, 2010 · Location: Cambs. Slight corrosion due to storage easily cleaned off. Buy Morris Minor Parts Online. 8,565 posts. Sep 29, 2003 · with a combustion chamber very similar to the modified one but with bigger inlet valves (1 7/32) - the casting number is 12G295. Both the 202 and the 295 heads are for the small bore engine, IE: 850, 998, and 1098 cc, The 202 head was fitted as standard to the 1098 and some of the 998 engine types, the 295 head originates with the 997 Coopers but actually predates Mk1 Mini Cooper - 12G202 Cylinder Head. It will need checking over before use. 56. Cylinder Heads International Aug 20, 2010 · A 206 or 295 head that has been skimmed to give a Compression Ratio of around 9. AU $179. lefe663 (218) 100% positive; Cylinder Head & Valve Cover Gaskets for Morris Minor, 12G202 cylinder head Bought for a project with a 998 Gone down another route Looks a decent head to modify All the valve clips are there >I have gave it a good clean and just sat in my shed at the moment Good heads to get more power out of your 998 Collection only High Wycombe Buckinghamshire Any questions please ask MORRIS MINOR 12G202 CYLINDER HEAD 1098cc MG MIDGET/MINI. Mountune cooper S large-valve cylinder head Cooper S tuning. Should make an appreciable improvement on your 850, but will never turn a small fun engine into a fire breathing monster. Condition: Used Used. $83. I know the 12g295 in standard form is good for boost. The 206 or 295 head is the one to go for - however unless it has been skimmed already it will need about 80 thou taken off to raise the compression ratio - this will be slightly higher than standard which is Manufacturer Part Number:12G202 Country/Region of Manufacture:United Kingdom Brand:MOWOG UPC:Does not apply 12G202 Cylinder Head removed from 1968 Austin 1100. Classic Mini Cylinder Head 12G202 Came in a job lot looks to be fairly good needs a good service skim etc before use Bare head nothing else included ready for refurb Viewing welcome and cash on collection preferred once your happy with it Picked up this head with some other items. 2 new watchers per day , 30 days for sale on eBay. MORRIS MINOR 12G202 CYLINDER HEAD 1098cc MG MIDGET/MINI WITH VALVES. The 998cc Cooper cylinder head was also fitted to high performance 1098cc engines, including the MG, Wolseley, Riley Kestrel and Vanden Plas Princess. I looked up the spec's in David Vizards book and although he says that it flows very well, I note that the combustion chamber is bigger than the Std 1098 12G202 head (28. Apr 24, 2013 · Posted 24 April 2013 - 07:34 PM. +EUR 16. Also fits Sprite, MG Midget & Morris. A+ head castings - despite having the same 12G940 casting number - are considerably different in appearance, loosing the flat area behind the thermostat housing and around the rest of the rocker/head stud areas to a sculptured look - where these areas are replaced by a 'sunken' cast finish. MINI/MG/Healey 12G202 8M cylinder head - $500 google map model Feb 19, 2017 · Modified 12G202 Cylinder Head. Cylinder Head - 12G202; 997 Cooper, 1098/1100cc - Reconditioned, Unleaded. These heads will ARP Head Stud Kit for Ford 2008 2009 2010 Powerstroke 6. Good by-pass hose. $530. With a new modified head, again based on a 12G202 head, it has inlet valves of 1. Jan 19, 2018 · The CAM4180 cylinder head will fit the 1098cc Minor engine and it has unleaded seats. 4 - Test with as above but with standard valve with 30-deg back-cut IN GOOD CONDITION. 0 sold, 1 available. Stage 2/3. Qty: Specially Priced. 00. View cart for details. Classic mini 12g202 heads as used on 997 Cooper engines no cracks don’t come with valves or springs come as pictured Discover comprehensive inventory of cylinder head products by visiting our website at Cylinder Heads International. . Free postage. bare casting. 4mm) diameter. 1). Please Select a Car to Ensure Proper Fitment. Jul 2, 2015 · Members. This is the ultimate "small bore" head in the 12G202 casting. We supply the highest quality Morris Minor parts. The best source of cylinder head casting information I've come across that combines USA, UK and the rest of the world information is the old 7-Enterprises paper bound catalogs. SOLD. There is also a small bore version of the 12A185 which has nothing to do with the bib bore head. No cracks. This Item has a $200. Trending at AU $191. Fits the following: Classic Mini. MINI COOPER MK1 CYLINDER HEAD VALVE CAP CLIPS 12G295 12G940 12G202 HEALEY S 2A12. 12G202 Small Bore Cylinder Head, Rebuilt. Some of the early big bore engines had cylinder heads with combustion chambers that looked like they originated from a small bore engine. But there is no point having a good engine and putting the wrong head on it. 45. Add to Wishlist. NO power. $63. I have been keeping these items but in reality will not be able to use them so up for grabs. 13 Postage. Ms. So in saying all that,,, its basically just been turned into a 12G295 Cooper head (with a little more) because it is a little bigger than a std 12G295 Cooper Head. £195. bengabb (543) Metra 95-3003G Double DIN Dash Kit With Wire Harness. 3 cylinders had good compression (120+ psi), 1 cylinder couldn't hold 30psi!, plug burns black. Jan 31, 2013 · Page 1 of 2 - 3 Cylinder Heads - 12G202, Cam4810(998Cc) And 1275 Head - posted in Archive: Hi guyshaving a clear out and got 3 heads up for grabs. I have seen 4000 miles recommended as service intervals. Discounts Do Not Apply. Shipping available worldwide. Large bore 12G940 head at the top and a large bore 12A185 head at Oct 19, 2008 · Page 1 of 2 - Will There Be Any Gain If I Fit A 12g202 Head To A 998 - posted in Problems, Questions and Technical: hi, just wondering if there will advantages in fitting a 12G202 head to a 998 with a larger exhaust system and a hif38 carb with k and n filter, think these heads were fitted to 997 early coopers and 1098cc engines. As far as a standard head goes, you can't go past the 12G295 or 12G206. Also Purchased. So i thought, why don't i use the round port header in my garage, it is 3 into 2 and bolts up to the piping i have. Engine Reference Pages. 5 : 1 would be ideal. Cylinder Head Components - Pg 32. You need to take the old head off and o the compression ratio alulations to establish how much you need to have skimmed off the 202 head to make it Classic Mini 12g202 cylinder head as off engine. Jan 3, 2015 · The MK1 Cooper S cylinder head is the early casting big bore 12A185. <p Sep 26, 2023 · Flat-head engines were regularly decoked. Sprite & MG Midget. Trending at $592. Watch this item. Appears to be in good condition, there are no visible cracks. BMC Classic Mini Cooper 997 Cylinder Head 12G202 | eBay A BMC Cylinder Head pt. + £6. 78. BMC Car Cylinder Heads with Classic Part, Find many great new & used options and get the best deals for Classic Mini Cylinder Head 12G202 at the best online prices at eBay! Free delivery for many products! Classic Mini Cylinder Head 12G202 Came in a job lot looks to be fairly good needs a good service skim etc before use Bare head nothing else included ready for refurb Viewing welcome and cash on collection preferred once your happy with it Apr 6, 2014 · Page 1 of 2 - Cylinder Head Studs - posted in Problems, Questions and Technical: Hi, Fairly new to minis and engines and currently replacing head gasket on a 1098 A series engine, when removing the cylinder head on a few of the studs, instead of the nut coming off the whole stud came off and was wondering how you put the studs back in and do you have to torque them? Classic Mini Cylinder Head 12G202 Came in a job lot looks to be fairly good needs a good service skim etc before use Bare head nothing else included ready for refurb Viewing welcome and cash on collection preferred once your happy with it this cylinder head is the inlet valve diameter, which at just 1 1/16" (27mm) is the smallest of any A Series head design. 070″ exhaust valves and gets over 100hp on the engine dyno with standard sized ports Product Description. PicClick Insights - Mini Cooper 12G202 Cylinder Head 997 998 1098 Mg Midget Morris Minor Race Rally PicClick Exclusive Popularity - 6 watchers, 0. The ports are different as well; the 12G202 has larger Aug 2, 2021 · In an engine, the top of the cylinder is closed with a separate cast piece called the cylinder head. Best Offer: Make offer Mini Cooper 12G202 Cylinder Head 997 998 1098 Mg Midget Morris Minor Race Rally Sold See similar items £75. the 12g295 is considered to be the better head but needs to be skimmed and you have to calculate the compression ratio, the 12g202 is a better head than the standard 998 head but it's not as good as the 12g295 the 12g940 requires the block to be pocketed, I suppose it depends on how much work and money you want Aug 8, 2005 · The head for your 1098 is the 12g202 - very common lots of them about - slightly bigger inlets than the 948 head (and the Mini head !). 12g202 mini head. I was told it's a valve issue. It has smaller inlet valves than the standard 1098cc 12G202 Minor head. Feb 23, 2014 · The 202 has a square form intake port and a slightly larger intake valve. Vales, springs and colets all together and not removed Will probably need a skim like most second hand heads Mar 14, 2008 · So, to sum up, as I understand it:-. >It has a layer of silver paint on the underside, this is to protect the face, (if i recall correctly it has had a skim, but i cannot prove that it has) I have in the later photos cleaned the paint off to see the condition. Buy it now. However it might need a skim to restore the CR. £88. Super high amount watching. This 202 head on a built 1100 engine has 1. Add to basket. Preferably close to Merseyside. 39 shipping. 260″ inlet and 1. However, because it has near ideal runners, it's a head modifiers favourite as it requires less work than a 998 head to get optimum results. All 12G202 heads had a square inlet ports starting in shape about ½”in and early types had recessed back face for manifolds and later 1967/8 on had flat back faces for manifolds. Classic Mini Cylinder Head 12G202 Came in a job lot looks to be fairly good needs a good service skim etc before use Bare head nothing else included ready for refurb Viewing welcome and cash on collection preferred once your happy with it Remember this is just a Hot-Road, Naturally-Asspirated motor, not a full-Race head. 49. It came with some parts i was going to use, but i am now going to use a 295 head, do this is no longer needed. Jan 1, 2012 · Hi guys, I have an original 12G202 head that I'm selling as I'm no longer going to use it (I have a Stage 4 998 head instead!) It comes unmollested & has all the valves, collets & springs individually bagged (and numbered) & also the original pressed rocker assembly. Instead of getting the valves and engine head done Classic Mini Cylinder Head 998 CAM 4810. £25. Seller: steve21_bath ️ (5,767) 100%, Location: Trowbridge, GB, Ships to: GB & many other countries, Item: 326051311188 Classic Mini Cooper 998 12G295 Cylinder Head. The springs look unused but to honest i can't remember. "Identification of the following cylinder head numbers: 12G202 and 12G295. Morris Minor. RC40 or other freeflow exhaust would be good, and either twin H1 1 1/8" carbs of HS2 1 1/4" carbs would be great. Dec 22, 2019 · As per Rob above - a photo of both the casting number and the head especially the ports and combustion chamber will help determine the head. lk tw mg xd qa co lk al ja kz